Sarome エクストラシン パイプクリーナー - 50本入り

I've got a Peterson with that narrow slot opening and these are the only ones that slide through without bending or shredding. The pack gives you 50, so I'm set for a good while.

These finally fit through the tight airway of my Peterson P.Lips without shredding or getting stuck. The extra thin bristles still manage to scrub out moisture and ash effectively, which is exactly what I needed.

Finally, a pipe cleaner thin enough to fit my Falcon stem without shredding the inside. No more struggling with jammed bristles—these slide right through and get the job done.